{"version":"1.0","type":"rich","title":"Choropleth map with interactive filtering","description":"This choropleth map displays countries colored by economic development category, with an interactive legend that filters the map when clicked. Hovering over a country reveals its name and category via a tooltip. The visualization uses d3.geoPath with a geoNaturalEarth1 projection, d3.zoom for panning, and d3.scaleOrdinal with schemeSpectral for color mapping. Data comes from world-atlas TopoJSON and TSV files, rendered as SVG with interactive updates triggered by legend clicks.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/c1b81498e7824c08a18d34c22060c4f1?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}